Possibilities and Limitations of Vibration Reduction at the Propagation Path
54º Congreso Español de Acústica — Tecniacústica 2023
Abstract
Real Estate Developments in the proximity of existing railway lines usually lead to additional demands on the planning and execution of the project. In addition to effects such as electric/electromagnetic fields or noise, vibrations and the resulting structure-borne noise can also represent a cost-relevant aspect during planning and execution. The implementation of track-side measures is especially at existing railway lines not possible. Therefore, measures at the building or at the propagation path (subsoil) must be considered. Measures on the building, such as elastic building bearings, are difficult to implement in complex building structures. In addition, the high insulation effects achieved by elastic building bearings are often not necessary, so that alternative, more cost-effective measures are considered. In the present study, measures at the propagation path are examined. Diaphragm walls, pile walls are examined based on numerical model calculations. Such civil engineering measures must be sometimes constructed anyway partly for constructional reasons, e.g., for excavation protection. The investigations are carried out based on numerical model calculations with the FLAC software. The aim of the present work is to investigate the effectiveness of different measures in the subsoil in the light of geological boundary conditions.